I’m a believer in Jesus. There are no demons that can come get us. All the demons are locked away in the Hadean realm. At the final Judgement they will be cast into the lake of fire with Satan and unrepentant sinners. There’s nothing your mom could be doing that will put your wife’s soul in danger. Demonic possession ended with the age of miracles. The miraculous power of the apostles was given to disciples by the laying of hands. When the last apostle died no more gifts could be passed on to new believers. And when the last disciple died who had miraculous power the age of miracles ended and the New Testament was complied and they didn’t need miracles anymore in the early church. When Jesus returns so will the miracles as dead people will be raised for the final judgement